railway RRB JE (CBT I + CBT II) Mock Test 2024 Communication Systems Introduction To Digital Modulation
Which modulation technique is used to avoid phase ambiguity in BPSK?
1
QPSK (Quadrature Phase Shift Keying)
2
ASK (Amplitude Shift Keying)
3
FSK (Frequency Shift Keying)
4
DPSK (Differential Phase Shift Keying)